1
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Wang FL, Liu L, Yang CJ, Luan C, Yang J, Chen JJ, Gu QS, Li ZL, Liu XY. Synthesis of α-Quaternary β-Lactams via Copper-Catalyzed Enantioconvergent Radical C(sp 3 )-C(sp 2 ) Cross-Coupling with Organoboronate Esters. Angew Chem Int Ed Engl 2023; 62:e202214709. [PMID: 36357331 DOI: 10.1002/anie.202214709] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Indexed: 11/12/2022]
Abstract
The copper-catalyzed enantioconvergent radical C(sp3 )-C(sp2 ) cross-coupling of tertiary α-bromo-β-lactams with organoboronate esters could provide the synthetically valuable α-quaternary β-lactams. The challenge arises mainly from the construction of sterically congested quaternary stereocenters between the tertiary alkyl radicals and chiral copper(II) species. Herein, we describe our success in achieving such transformations through the utilization of a copper/hemilabile N,N,N-ligand catalyst to forge the sterically congested chiral C(sp3 )-C(sp2 ) bond via a single-electron reduction/transmetalation/bond formation catalytic cycle. The synthetic potential of this approach is shown in the straightforward conversion of the corresponding products into many valuable building blocks. We hope that the developed catalytic cycle would open up new vistas for more enantioconvergent cross-coupling reactions.
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Affiliation(s)
- Fu-Li Wang
- School of Science and Institute of Scientific Research, Great Bay University, Dongguan, 523000, China.,Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Lin Liu
- School of Science and Institute of Scientific Research, Great Bay University, Dongguan, 523000, China.,Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Chang-Jiang Yang
- School of Science and Institute of Scientific Research, Great Bay University, Dongguan, 523000, China.,Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Cheng Luan
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen, 518055, China.,Academy for Advanced Interdisciplinary Studies and Department of Chemistry, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Jing Yang
- College of Health Science and Environmental Engineering, Shenzhen Technology University, Shenzhen, 518118, China
| | - Ji-Jun Chen
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Qiang-Shuai Gu
- Academy for Advanced Interdisciplinary Studies and Department of Chemistry, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Zhong-Liang Li
- Academy for Advanced Interdisciplinary Studies and Department of Chemistry, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Xin-Yuan Liu
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen, 518055, China
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2
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Kanai H, Yamada K, Salikolimi K, Kodama K, Ishida Y. Supramolecular Architecture of an Amphiphilic Amino Alcohol as a Versatile Chiral Environment for Stereocontrolled Photoreaction of Various Anthracenes. Chemistry 2022; 28:e202201940. [DOI: 10.1002/chem.202201940] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Indexed: 11/06/2022]
Affiliation(s)
- Hayato Kanai
- RIKEN Center for Emergent Matter Science 2-1 Hirosawa Wako Saitama 351-0198 Japan
- Department of Applied Chemistry Graduate School of Science and Engineering Saitama University 255 Shimo-Okubo, Sakura-ku Saitama 338-8570 Japan
| | - Kuniyo Yamada
- RIKEN Center for Emergent Matter Science 2-1 Hirosawa Wako Saitama 351-0198 Japan
| | | | - Koichi Kodama
- Department of Applied Chemistry Graduate School of Science and Engineering Saitama University 255 Shimo-Okubo, Sakura-ku Saitama 338-8570 Japan
| | - Yasuhiro Ishida
- RIKEN Center for Emergent Matter Science 2-1 Hirosawa Wako Saitama 351-0198 Japan
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3
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Ziegenbalg D, Pannwitz A, Rau S, Dietzek‐Ivanšić B, Streb C. Comparative Evaluation of Light‐Driven Catalysis: A Framework for Standardized Reporting of Data**. Angew Chem Int Ed Engl 2022; 61:e202114106. [PMID: 35698245 PMCID: PMC9401044 DOI: 10.1002/anie.202114106] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Indexed: 01/05/2023]
Affiliation(s)
- Dirk Ziegenbalg
- Institute of Chemical Engineering Ulm University Albert-Einstein-Allee 11 89081 Ulm Germany
| | - Andrea Pannwitz
- Institute of Inorganic Chemistry I Ulm University Albert-Einstein-Allee 11 89081 Ulm Germany
| | - Sven Rau
- Institute of Inorganic Chemistry I Ulm University Albert-Einstein-Allee 11 89081 Ulm Germany
| | - Benjamin Dietzek‐Ivanšić
- Institute of Physical Chemistry and Center of Energy and Environmental Chemistry Jena (CEEC Jena) Friedrich Schiller University Jena Helmholtzweg 4 07743 Jena Germany
- Department Functional Interfaces Leibniz Institute of Photonic Technology Jena (IPHT) Albert-Einstein-Straße 9 07745 Jena Germany
| | - Carsten Streb
- Institute of Inorganic Chemistry I Ulm University Albert-Einstein-Allee 11 89081 Ulm Germany
- Department of Chemistry Johannes Gutenberg University Mainz Duesbergweg 10-14 55128 Mainz Germany
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4
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Fernández S, Allegue D, Santamaría J, Ballesteros A. Diastereoselective and Synergistic Gold‐Catalyzed Bispropargylation of Xanthones and Thioxanthones: An Access to Xanthene Derivatives. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202200526] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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5
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Liu Y, Ni D, Stevenson BG, Tripathy V, Braley SE, Raghavachari K, Swierk JR, Brown MK. Photosensitized [2+2]-Cycloadditions of Alkenylboronates and Alkenes. Angew Chem Int Ed Engl 2022; 61:e202200725. [PMID: 35446458 DOI: 10.1002/anie.202200725] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Indexed: 12/17/2022]
Abstract
A new strategy for the synthesis of highly versatile cyclobutylboronates via the photosensitized [2+2]-cycloaddition of alkenylboronates and alkenes is presented. The process is mechanistically different from other processes in that energy transfer occurs with the alkenylboronate as opposed to the other alkene. This strategy allows for the synthesis of an array of diverse cyclobutylboronates. The conversion of these adducts to other compounds as well as their utility in the synthesis of melicodenine C is demonstrated.
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Affiliation(s)
- Yanyao Liu
- Department of Chemistry, Indiana University, 800 E. Kirkwood Ave., Bloomington, IN 47401, USA
| | - Dongshun Ni
- Department of Chemistry, Indiana University, 800 E. Kirkwood Ave., Bloomington, IN 47401, USA
| | - Bernard G Stevenson
- Department of Chemistry, Binghamton University, 4400 Vestal Parkway East, Binghamton, NY 13902, USA
| | - Vikrant Tripathy
- Department of Chemistry, Indiana University, 800 E. Kirkwood Ave., Bloomington, IN 47401, USA
| | - Sarah E Braley
- Department of Chemistry, Indiana University, 800 E. Kirkwood Ave., Bloomington, IN 47401, USA
| | - Krishnan Raghavachari
- Department of Chemistry, Indiana University, 800 E. Kirkwood Ave., Bloomington, IN 47401, USA
| | - John R Swierk
- Department of Chemistry, Binghamton University, 4400 Vestal Parkway East, Binghamton, NY 13902, USA
| | - M Kevin Brown
- Department of Chemistry, Indiana University, 800 E. Kirkwood Ave., Bloomington, IN 47401, USA
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6
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Ziegenbalg D, Pannwitz A, Rau S, Dietzek‐Ivanšić B, Streb C. Vergleichende Evaluierung lichtgetriebener Katalyse: Ein Rahmenkonzept für das standardisierte Berichten von Daten**. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202114106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Dirk Ziegenbalg
- Institut für Chemieingenieurwesen Universität Ulm Albert-Einstein-Allee 11 89081 Ulm Deutschland
| | - Andrea Pannwitz
- Institut für Anorganische Chemie I Universität Ulm Albert-Einstein-Allee 11 89081 Ulm Deutschland
| | - Sven Rau
- Institut für Anorganische Chemie I Universität Ulm Albert-Einstein-Allee 11 89081 Ulm Deutschland
| | - Benjamin Dietzek‐Ivanšić
- Institut für Physikalische Chemie und Center of Energy and Environmental Chemistry Jena (CEEC Jena) Friedrich-Schiller-Universität Jena Helmholtzweg 4 07743 Jena Deutschland
- Department Funktionale Grenzflächen Leibniz-Institut für Photonische Technologien Jena (IPHT) Albert-Einstein-Straße 9 07745 Jena Deutschland
| | - Carsten Streb
- Institut für Anorganische Chemie I Universität Ulm Albert-Einstein-Allee 11 89081 Ulm Deutschland
- Department of Chemistry Johannes Gutenberg University Mainz Duesbergweg 10-14 55128 Mainz Germany
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7
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Roy S, Paul H, Chatterjee I. Light‐Mediated Aminocatalysis: The Dual‐Catalytic Ability Enabling New Enantioselective Route. European J Org Chem 2022. [DOI: 10.1002/ejoc.202200446] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Sourav Roy
- IIT Ropar: Indian Institute of Technology Ropar Chemistry INDIA
| | - Hrishikesh Paul
- IIT Ropar: Indian Institute of Technology Ropar Chemistry INDIA
| | - Indranil Chatterjee
- Indian Institute of Technology, Ropar Chemistry Nangal Road 140001 Rupnagar INDIA
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8
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Guo F, Wang H, Ye X, Tan CH. Advanced Synthesis Using Photocatalysis Involved Dual Catalytic System. European J Org Chem 2022. [DOI: 10.1002/ejoc.202200326] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Fenfen Guo
- Zhejiang University of Technology College of Pharmaceutical Science CHINA
| | - Hong Wang
- Zhejiang University of Technology College of Pharmaceutical Science CHINA
| | - Xinyi Ye
- Zhejiang University of Technology College of Pharmaceutical Science 18 Chaowang Road 310014 Hangzhou CHINA
| | - Choon-Hong Tan
- Nanyang Technological University School of Physical and Mathematical Sciences SINGAPORE
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9
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Liu Y, Ni D, Stevenson BG, Tripathy V, Braley SE, Raghavachari K, Swierk JR, Brown MK. Photosensitized [2+2]‐Cycloadditions of Alkenylboronates and Alkenes. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202200725] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Yanyao Liu
- Department of Chemistry Indiana University 800 E. Kirkwood Ave. Bloomington IN 47401 USA
| | - Dongshun Ni
- Department of Chemistry Indiana University 800 E. Kirkwood Ave. Bloomington IN 47401 USA
| | - Bernard G. Stevenson
- Department of Chemistry Binghamton University 4400 Vestal Parkway East Binghamton NY 13902 USA
| | - Vikrant Tripathy
- Department of Chemistry Indiana University 800 E. Kirkwood Ave. Bloomington IN 47401 USA
| | - Sarah E. Braley
- Department of Chemistry Indiana University 800 E. Kirkwood Ave. Bloomington IN 47401 USA
| | - Krishnan Raghavachari
- Department of Chemistry Indiana University 800 E. Kirkwood Ave. Bloomington IN 47401 USA
| | - John R. Swierk
- Department of Chemistry Binghamton University 4400 Vestal Parkway East Binghamton NY 13902 USA
| | - M. Kevin Brown
- Department of Chemistry Indiana University 800 E. Kirkwood Ave. Bloomington IN 47401 USA
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10
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Kowalczyk D, Li P, Abbas A, Eichhorn J, Buday P, Heiland M, Pannwitz A, Schacher F, Weigand W, Streb C, Ziegenbalg D. Making photocatalysis comparable using a modular and characterized Open‐Source photoreactor. CHEMPHOTOCHEM 2022. [DOI: 10.1002/cptc.202200044] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Daniel Kowalczyk
- Ulm University: Universitat Ulm Institute of Chemical Engineering GERMANY
| | - Pengcheng Li
- Ulm University: Universitat Ulm Institute of Chemical Engineering GERMANY
| | - Amir Abbas
- Ulm University: Universitat Ulm Institute of Inorganic Chemistry GERMANY
| | - Jonas Eichhorn
- Friedrich Schiller University Jena: Friedrich-Schiller-Universitat Jena Institute of Organic Chemistry and Macromolecular Chemistry GERMANY
| | - Philipp Buday
- Friedrich Schiller University Jena: Friedrich-Schiller-Universitat Jena Institute for Inorganic and Analytical Chemistry GERMANY
| | - Magdalena Heiland
- Ulm University: Universitat Ulm Institute of Inorganic Chemistry GERMANY
| | - Andrea Pannwitz
- Ulm University: Universitat Ulm Institute of Inorganic Chemistry GERMANY
| | - Felix Schacher
- Friedrich Schiller University Jena: Friedrich-Schiller-Universitat Jena Institute of Organic Chemistry and Macromolecular Chemistry GERMANY
| | - Wolfgang Weigand
- Friedrich-Schiller-Universität Jena: Friedrich-Schiller-Universitat Jena Institute for Inorganic and Analytical Chemistry GERMANY
| | - Carsten Streb
- Ulm University: Universitat Ulm Institute of Inorganic Chemistry GERMANY
| | - Dirk Ziegenbalg
- Ulm University Institute of Chemical Engineering Albert-Einstein-Allee 11 89081 Ulm GERMANY
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11
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Yao Z, Zhang X, Luo Z, Pan Y, Zhao H, Li B, Xu L, Shi Q, Fan Q. Na
2
S
2
O
8
‐Mediated Tandem One‐Pot Construction of 3,3‐Disubsituted 3,4‐Dihydroquinoxalin‐2(1
H
)‐ones with 4‐Alkyl‐1,4‐dihydropyridines as Alkyl Radical Sources. ASIAN J ORG CHEM 2022. [DOI: 10.1002/ajoc.202100609] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Zhen Yao
- Department of Chemistry Renmin University of China Beijing 100872 P. R. China
| | - Xin Zhang
- Department of Chemistry Renmin University of China Beijing 100872 P. R. China
| | - Zhenli Luo
- Department of Chemistry Renmin University of China Beijing 100872 P. R. China
| | - Yixiao Pan
- Department of Chemistry Renmin University of China Beijing 100872 P. R. China
| | - Haoqiang Zhao
- Department of Chemistry Renmin University of China Beijing 100872 P. R. China
| | - Bohan Li
- Department of Chemistry Renmin University of China Beijing 100872 P. R. China
| | - Lijin Xu
- Department of Chemistry Renmin University of China Beijing 100872 P. R. China
| | - Qian Shi
- College of Chemistry & Materials Engineering Wenzhou University Wenzhou 325035 P. R. China
| | - Qing‐Hua Fan
- Institute of Chemistry Chinese Academy of Sciences
- University of Chinese Academy of Sciences Beijing 100190 P. R. China
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12
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Ye Z, Lin Y, Gong L. The Merger of Photocatalyzed Hydrogen Atom Transfer with Transition Metal Catalysis for C−H Functionalization of Alkanes and Cycloalkanes. European J Org Chem 2021. [DOI: 10.1002/ejoc.202101036] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Ziqi Ye
- Key Laboratory of Chemical Biology of Fujian Province iChEM College of Chemistry and Chemical Engineering Xiamen University Xiamen, Fujian 361005 China
| | - Yu‐Mei Lin
- Key Laboratory of Chemical Biology of Fujian Province iChEM College of Chemistry and Chemical Engineering Xiamen University Xiamen, Fujian 361005 China
| | - Lei Gong
- Key Laboratory of Chemical Biology of Fujian Province iChEM College of Chemistry and Chemical Engineering Xiamen University Xiamen, Fujian 361005 China
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13
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Zheng M, Gao K, Qin H, Li G, Lu H. Metal-to-Ligand Ratio-Dependent Chemodivergent Asymmetric Synthesis. Angew Chem Int Ed Engl 2021; 60:22892-22899. [PMID: 34405932 DOI: 10.1002/anie.202108617] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Revised: 07/26/2021] [Indexed: 11/05/2022]
Abstract
Chemodivergent asymmetric synthesis was achieved by tuning the metal-to-ligand ratio in an organometallic catalytic system. Using N-(aroyloxy)phthalimide as the precursor of either an oxygen-centered aroyloxy radical or a nitrogen-centered phthalimidyl radical, enantioselective oxocyanation or aminocyanation of alkenes was achieved separately through a dual photoredox and copper catalysis. The metal-to-ligand ratio can exert chemoselective control while retaining the high enantiopurity of divergent products. Both reactions proceed efficiently with catalyst loading as low as 0.2 mol % and can be performed on a gram scale without loss of chemoselectivity or enantioselectivity. Chemodivergent asymmetric 1,5-aminocyanation or 1,5-oxocyanation of vinylcyclopropane can also be realized by this protocol. Mechanistic investigations involving electron paramagnetic resonance (EPR) experiments were performed to shed light on the stereochemical and chemodivergent results.
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Affiliation(s)
- Min Zheng
- Institute of Chemistry and BioMedical Sciences, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210093, China
| | - Ke Gao
- Institute of Chemistry and BioMedical Sciences, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210093, China
| | - Haitao Qin
- Institute of Chemistry and BioMedical Sciences, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210093, China
| | - Guigen Li
- Institute of Chemistry and BioMedical Sciences, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210093, China.,Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, Texas, 79409-1061, USA
| | - Hongjian Lu
- Institute of Chemistry and BioMedical Sciences, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210093, China
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14
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Zheng M, Gao K, Qin H, Li G, Lu H. Metal‐to‐Ligand Ratio‐Dependent Chemodivergent Asymmetric Synthesis. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202108617] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Min Zheng
- Institute of Chemistry and BioMedical Sciences Jiangsu Key Laboratory of Advanced Organic Materials School of Chemistry and Chemical Engineering Nanjing University Nanjing 210093 China
| | - Ke Gao
- Institute of Chemistry and BioMedical Sciences Jiangsu Key Laboratory of Advanced Organic Materials School of Chemistry and Chemical Engineering Nanjing University Nanjing 210093 China
| | - Haitao Qin
- Institute of Chemistry and BioMedical Sciences Jiangsu Key Laboratory of Advanced Organic Materials School of Chemistry and Chemical Engineering Nanjing University Nanjing 210093 China
| | - Guigen Li
- Institute of Chemistry and BioMedical Sciences Jiangsu Key Laboratory of Advanced Organic Materials School of Chemistry and Chemical Engineering Nanjing University Nanjing 210093 China
- Department of Chemistry and Biochemistry Texas Tech University Lubbock Texas 79409-1061 USA
| | - Hongjian Lu
- Institute of Chemistry and BioMedical Sciences Jiangsu Key Laboratory of Advanced Organic Materials School of Chemistry and Chemical Engineering Nanjing University Nanjing 210093 China
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15
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Abstract
Photochemical transformations of molecular building blocks have become an important and widely recognized research field in the past decade. Detailed and deep understanding of novel photochemical catalysts and reaction concepts with visible light as the energy source has enabled a broad application portfolio for synthetic organic chemistry. In parallel, continuous-flow chemistry and microreaction technology have become the basis for thinking and doing chemistry in a novel fashion with clear focus on improved process control for higher conversion and selectivity. As can be seen by the large number of scientific publications on flow photochemistry in the recent past, both research topics have found each other as exceptionally well-suited counterparts with high synergy by combining chemistry and technology. This review will give an overview on selected reaction classes, which represent important photochemical transformations in synthetic organic chemistry, and which benefit from mild and defined process conditions by the transfer from batch to continuous-flow mode.
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Affiliation(s)
- Thomas H. Rehm
- Division Energy & Chemical Technology/Flow Chemistry GroupFraunhofer Institute for Microengineering and Microsystems IMMCarl-Zeiss-Straße 18–2055129MainzGermany
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16
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Chatterjee B, Chang W, Werlé C. Molecularly Controlled Catalysis – Targeting Synergies Between Local and Non‐local Environments. ChemCatChem 2020. [DOI: 10.1002/cctc.202001431] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Basujit Chatterjee
- Max Planck Institute for Chemical Energy Conversion Stiftstr. 34–36 45470 Mülheim an der Ruhr Germany
- Ruhr University Bochum Universitätsstr. 150 44801 Bochum Germany
| | - Wei‐Chieh Chang
- Max Planck Institute for Chemical Energy Conversion Stiftstr. 34–36 45470 Mülheim an der Ruhr Germany
- Ruhr University Bochum Universitätsstr. 150 44801 Bochum Germany
| | - Christophe Werlé
- Max Planck Institute for Chemical Energy Conversion Stiftstr. 34–36 45470 Mülheim an der Ruhr Germany
- Ruhr University Bochum Universitätsstr. 150 44801 Bochum Germany
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17
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Pradhan S, Roy S, Sahoo B, Chatterjee I. Utilization of CO 2 Feedstock for Organic Synthesis by Visible-Light Photoredox Catalysis. Chemistry 2020; 27:2254-2269. [PMID: 32931070 DOI: 10.1002/chem.202003685] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2020] [Revised: 09/08/2020] [Indexed: 12/20/2022]
Abstract
CO2 is a highly abundant, green, and sustainable carbon feedstock. Despite its kinetic inertness and thermodynamic stability, the development of various catalytic techniques has enabled the conversion of CO2 to value-added products such as carboxylic acids, amino acids, and heterocyclic compounds, where visible-light photocatalysis has emerged to be an efficient promoter of these processes. This Minireview covers the progress in the areas of CO2 incorporation onto organic matters based on the combined venture of renewable resources of CO2 and light energy with significant emphasis on the last three years' developments.
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Affiliation(s)
- Suman Pradhan
- Department of Chemistry, Indian Institute of Technology Ropar, Nangal Road, Rupnagar, Punjab, 140001, India
| | - Sourav Roy
- Department of Chemistry, Indian Institute of Technology Ropar, Nangal Road, Rupnagar, Punjab, 140001, India
| | - Basudev Sahoo
- School of Chemistry, Indian Institute of Science Education and, Research (IISER) Thiruvananthapuram, Maruthamala PO, Vithura, Thiruvananthapuram, 695551, Kerala, India
| | - Indranil Chatterjee
- Department of Chemistry, Indian Institute of Technology Ropar, Nangal Road, Rupnagar, Punjab, 140001, India
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18
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Li X, Kutta RJ, Jandl C, Bauer A, Nuernberger P, Bach T. Photochemically Induced Ring Opening of Spirocyclopropyl Oxindoles: Evidence for a Triplet 1,3‐Diradical Intermediate and Deracemization by a Chiral Sensitizer. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202008384] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Xinyao Li
- Department Chemie and Catalysis Research Center (CRC) Technische Universität München Lichtenbergstraße 4 85747 Garching Germany
| | - Roger J. Kutta
- Institut für Physikalische und Theoretische Chemie Universität Regensburg Universitätsstr. 31 93053 Regensburg Germany
| | - Christian Jandl
- Department Chemie and Catalysis Research Center (CRC) Technische Universität München Lichtenbergstraße 4 85747 Garching Germany
| | - Andreas Bauer
- Department Chemie and Catalysis Research Center (CRC) Technische Universität München Lichtenbergstraße 4 85747 Garching Germany
| | - Patrick Nuernberger
- Institut für Physikalische und Theoretische Chemie Universität Regensburg Universitätsstr. 31 93053 Regensburg Germany
| | - Thorsten Bach
- Department Chemie and Catalysis Research Center (CRC) Technische Universität München Lichtenbergstraße 4 85747 Garching Germany
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19
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Abstract
From the understanding of biological processes and metalloenzymes to the development of inorganic catalysts, electro- and photocatalytic systems for fuel generation have evolved considerably during the last decades. Recently, organic and hybrid organic systems have emerged to challenge the classical inorganic structures through their enormous chemical diversity and modularity that led earlier to their success in organic (opto)electronics. This Minireview describes recent advances in the design of synthetic organic architectures and promising strategies toward (solar) fuel synthesis, highlighting progress on materials from organic ligands and chromophores to conjugated polymers and covalent organic frameworks.
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Affiliation(s)
- Julien Warnan
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, UK
- Department Chemie, Technische Universität München, Lichtenbergstraße 4, 85747, Garching, Germany
| | - Erwin Reisner
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, UK
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20
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Liu H, Gao H, Wang S, Yao S, Wu F, Zhao Y, Chan KS, Shen Z. Regulation of an Ambient-Light-Induced Photocyclization Pathway (Norrish-Yang Versus 6π) by Substituent Choice. Chemistry 2020; 26:12418-12430. [PMID: 32372418 DOI: 10.1002/chem.202000990] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2020] [Revised: 04/28/2020] [Indexed: 12/12/2022]
Abstract
Photocyclization, irrespective of whether multiple steps (e.g., Norrish-Yang cyclization) or a single concerted step (e.g., 6π photocyclization) are involved, is an intramolecular photochemical process resulting in the formation of one new single bond to afford a ring system. In particular, visible-light-induced photocyclization offers a green and sustainable route to organic cyclic compounds that are difficult to access by thermal reactions. Herein, we describe the ambient light-induced intramolecular photocyclization of a series of donor/acceptor chromophores 1 d-3 d containing two types of photoresponsive motifs, namely an electron-deficient BF2 -chelated ketone fused with an electron-rich thiophene, and probe the solution-phase and solid-state photochromic performance of these compounds. The results reveal that simple variation of R substituents on the diaryl moiety allows one to control the intramolecular photocyclization mechanism with high photochemical selectivity, e.g., under ambient light, methyl-substituted 1 d and 2 d undergo reversible 6π photocyclization, whereas ethyl-substituted 3 d exclusively undergoes irreversible Norrish-Yang photocyclization. Single-crystal X-ray analysis of Norrish-Yang cyclization products reveals the formation of four pairs of conformational enantiomers differing in the dihedral angle between benzothiophene and the BF2 core, namely (±)N-3 d@68°, (±)N-3 d@-77°, (±)N-3 d@-78°, and (±)N-3 d@-102°. The UV/Vis absorption spectra of 1 d-3 d cover a broad visible-light region (380-572 nm), while DFT and TD-DFT calculations reveal that absorption in this region is dominated by the charge-transfer (CT) transition from the thiophene-centered HOMO to the LUMO of the electron-deficient π-conjugated BF2 -chelated unit and the n→π* and π→π* transitions within the latter unit. The spatial separation of the HOMO and LUMO of these dyes promotes triplet-state generation and self-photosensitizes intramolecular photocyclization in the visible-light region. Three-dimensional time-resolved and steady-state emission spectra of 3 d show that the Norrish-Yang photocyclization takes place within milliseconds with excellent conversion efficiency (96 %).
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Affiliation(s)
- Hui Liu
- State Key Laboratory of Coordination Chemistry, Collaborative Innovation Center of Advanced Microstructures, School of Chemistry and Chemical Engineering Nanjing University, Nanjing, 210046, P. R. China
| | - Hu Gao
- State Key Laboratory of Coordination Chemistry, Collaborative Innovation Center of Advanced Microstructures, School of Chemistry and Chemical Engineering Nanjing University, Nanjing, 210046, P. R. China
| | - Sisi Wang
- State Key Laboratory of Coordination Chemistry, Collaborative Innovation Center of Advanced Microstructures, School of Chemistry and Chemical Engineering Nanjing University, Nanjing, 210046, P. R. China
| | - Shengxin Yao
- State Key Laboratory of Coordination Chemistry, Collaborative Innovation Center of Advanced Microstructures, School of Chemistry and Chemical Engineering Nanjing University, Nanjing, 210046, P. R. China
| | - Fan Wu
- State Key Laboratory of Coordination Chemistry, Collaborative Innovation Center of Advanced Microstructures, School of Chemistry and Chemical Engineering Nanjing University, Nanjing, 210046, P. R. China
| | - Yue Zhao
- State Key Laboratory of Coordination Chemistry, Collaborative Innovation Center of Advanced Microstructures, School of Chemistry and Chemical Engineering Nanjing University, Nanjing, 210046, P. R. China
| | - Kin Shing Chan
- State Key Laboratory of Coordination Chemistry, Collaborative Innovation Center of Advanced Microstructures, School of Chemistry and Chemical Engineering Nanjing University, Nanjing, 210046, P. R. China
| | - Zhen Shen
- State Key Laboratory of Coordination Chemistry, Collaborative Innovation Center of Advanced Microstructures, School of Chemistry and Chemical Engineering Nanjing University, Nanjing, 210046, P. R. China
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21
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Zhou W, Wu X, Miao M, Wang Z, Chen L, Shan S, Cao G, Yu D. Light Runs Across Iron Catalysts in Organic Transformations. Chemistry 2020; 26:15052-15064. [DOI: 10.1002/chem.202000508] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2020] [Revised: 05/24/2020] [Indexed: 12/23/2022]
Affiliation(s)
- Wen‐Jun Zhou
- Key Laboratory of Green Chemistry & Technology of Ministry of, Education College of Chemistry Sichuan University Chengdu 610064 P. R. China
- College of Chemistry and Chemical Engineering Neijiang Normal University Neijiang 641100 P. R. China
| | - Xu‐Dong Wu
- Faculty of Material and Chemical Engineering Yibin University Yibin, Sichuan 644007 P. R. China
| | - Meng Miao
- Key Laboratory of Green Chemistry & Technology of Ministry of, Education College of Chemistry Sichuan University Chengdu 610064 P. R. China
| | - Zhe‐Hao Wang
- Key Laboratory of Green Chemistry & Technology of Ministry of, Education College of Chemistry Sichuan University Chengdu 610064 P. R. China
| | - Liang Chen
- Key Laboratory of Green Chemistry & Technology of Ministry of, Education College of Chemistry Sichuan University Chengdu 610064 P. R. China
| | - Si‐Yi Shan
- Key Laboratory of Green Chemistry & Technology of Ministry of, Education College of Chemistry Sichuan University Chengdu 610064 P. R. China
| | - Guang‐Mei Cao
- Key Laboratory of Green Chemistry & Technology of Ministry of, Education College of Chemistry Sichuan University Chengdu 610064 P. R. China
| | - Da‐Gang Yu
- Key Laboratory of Green Chemistry & Technology of Ministry of, Education College of Chemistry Sichuan University Chengdu 610064 P. R. China
- Beijing National Laboratory for Molecular Sciences Beijing 100190 P. R. China
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22
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Ma H, Zou J, Li X, Chen G, Dong Y. Homochiral Covalent Organic Frameworks for Asymmetric Catalysis. Chemistry 2020; 26:13754-13770. [DOI: 10.1002/chem.202001006] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Revised: 04/21/2020] [Indexed: 12/22/2022]
Affiliation(s)
- Hui‐Chao Ma
- College of Chemistry, Chemical Engineering and Materials Science Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong Key Laboratory of Molecular and Nano Probes Ministry of Education, Shandong Normal University Jinan 250014 P.R. China
| | - Jie Zou
- College of Chemistry, Chemical Engineering and Materials Science Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong Key Laboratory of Molecular and Nano Probes Ministry of Education, Shandong Normal University Jinan 250014 P.R. China
| | - Xue‐Tian Li
- College of Chemistry, Chemical Engineering and Materials Science Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong Key Laboratory of Molecular and Nano Probes Ministry of Education, Shandong Normal University Jinan 250014 P.R. China
| | - Gong‐Jun Chen
- College of Chemistry, Chemical Engineering and Materials Science Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong Key Laboratory of Molecular and Nano Probes Ministry of Education, Shandong Normal University Jinan 250014 P.R. China
| | - Yu‐Bin Dong
- College of Chemistry, Chemical Engineering and Materials Science Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong Key Laboratory of Molecular and Nano Probes Ministry of Education, Shandong Normal University Jinan 250014 P.R. China
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23
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Li X, Kutta RJ, Jandl C, Bauer A, Nuernberger P, Bach T. Photochemically Induced Ring Opening of Spirocyclopropyl Oxindoles: Evidence for a Triplet 1,3-Diradical Intermediate and Deracemization by a Chiral Sensitizer. Angew Chem Int Ed Engl 2020; 59:21640-21647. [PMID: 32757341 PMCID: PMC7756555 DOI: 10.1002/anie.202008384] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2020] [Revised: 07/23/2020] [Indexed: 12/17/2022]
Abstract
The photochemical deracemization of spiro[cyclopropane‐1,3′‐indolin]‐2′‐ones (spirocyclopropyl oxindoles) was studied. The corresponding 2,2‐dichloro compound is configurationally labile upon direct irradiation at λ=350 nm and upon irradiation at λ=405 nm in the presence of achiral thioxanthen‐9‐one as the sensitizer. The triplet 1,3‐diradical intermediate generated in the latter reaction was detected by transient absorption spectroscopy and its lifetime determined (τ=22 μs). Using a chiral thioxanthone or xanthone, with a lactam hydrogen bonding site as a photosensitizer, allowed the deracemization of differently substituted chiral spirocyclopropyl oxindoles with yields of 65–98 % and in 50–85 % ee (17 examples). Three mechanistic contributions were identified to co‐act favorably for high enantioselectivity: the difference in binding constants to the chiral thioxanthone, the smaller molecular distance in the complex of the minor enantiomer, and the lifetime of the intermediate 1,3‐diradical.
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Affiliation(s)
- Xinyao Li
- Department Chemie and Catalysis Research Center (CRC), Technische Universität München, Lichtenbergstraße 4, 85747, Garching, Germany
| | - Roger J Kutta
- Institut für Physikalische und Theoretische Chemie, Universität Regensburg, Universitätsstr. 31, 93053, Regensburg, Germany
| | - Christian Jandl
- Department Chemie and Catalysis Research Center (CRC), Technische Universität München, Lichtenbergstraße 4, 85747, Garching, Germany
| | - Andreas Bauer
- Department Chemie and Catalysis Research Center (CRC), Technische Universität München, Lichtenbergstraße 4, 85747, Garching, Germany
| | - Patrick Nuernberger
- Institut für Physikalische und Theoretische Chemie, Universität Regensburg, Universitätsstr. 31, 93053, Regensburg, Germany
| | - Thorsten Bach
- Department Chemie and Catalysis Research Center (CRC), Technische Universität München, Lichtenbergstraße 4, 85747, Garching, Germany
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24
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Yin Y, Zhao X, Jiang Z. Advances in the Synthesis of Imine‐Containing Azaarene Derivatives via Photoredox Catalysis. ChemCatChem 2020. [DOI: 10.1002/cctc.202000741] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Yanli Yin
- College of Bioengineering Henan University of Technology Zhengzhou Henan 450001 P. R. China
- School of Chemistry and Chemical Engineering Henan Normal University Xinxiang Henan 453007 P. R. China
| | - Xiaowei Zhao
- College of Pharmacy Henan University Kaifeng Henan 475004 P. R. China
| | - Zhiyong Jiang
- School of Chemistry and Chemical Engineering Henan Normal University Xinxiang Henan 453007 P. R. China
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25
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Affiliation(s)
- Julien Warnan
- Department of Chemistry University of Cambridge Lensfield Road Cambridge CB2 1EW UK
- Department Chemie Technische Universität München Lichtenbergstraße 4 85747 Garching Germany
| | - Erwin Reisner
- Department of Chemistry University of Cambridge Lensfield Road Cambridge CB2 1EW UK
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26
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Li L, Li Y, Fu N, Zhang L, Luo S. Catalytic Asymmetric Electrochemical α‐Arylation of Cyclic β‐Ketocarbonyls with Anodic Benzyne Intermediates. Angew Chem Int Ed Engl 2020; 59:14347-14351. [DOI: 10.1002/anie.202006016] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2020] [Indexed: 01/12/2023]
Affiliation(s)
- Longji Li
- Key Laboratory of Molecular Recognition and Function Institute of Chemistry Chinese Academy of Sciences Beijing 100190 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Yao Li
- Center of Basic Molecular Science (CBMS) Department of Chemistry Tsinghua University Beijing 100084 China
| | - Niankai Fu
- Key Laboratory of Molecular Recognition and Function Institute of Chemistry Chinese Academy of Sciences Beijing 100190 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Long Zhang
- Center of Basic Molecular Science (CBMS) Department of Chemistry Tsinghua University Beijing 100084 China
| | - Sanzhong Luo
- Center of Basic Molecular Science (CBMS) Department of Chemistry Tsinghua University Beijing 100084 China
- Key Laboratory of Molecular Recognition and Function Institute of Chemistry Chinese Academy of Sciences Beijing 100190 China
- University of Chinese Academy of Sciences Beijing 100049 China
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27
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Li L, Li Y, Fu N, Zhang L, Luo S. Catalytic Asymmetric Electrochemical α‐Arylation of Cyclic β‐Ketocarbonyls with Anodic Benzyne Intermediates. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202006016] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Longji Li
- Key Laboratory of Molecular Recognition and Function Institute of Chemistry Chinese Academy of Sciences Beijing 100190 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Yao Li
- Center of Basic Molecular Science (CBMS) Department of Chemistry Tsinghua University Beijing 100084 China
| | - Niankai Fu
- Key Laboratory of Molecular Recognition and Function Institute of Chemistry Chinese Academy of Sciences Beijing 100190 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Long Zhang
- Center of Basic Molecular Science (CBMS) Department of Chemistry Tsinghua University Beijing 100084 China
| | - Sanzhong Luo
- Center of Basic Molecular Science (CBMS) Department of Chemistry Tsinghua University Beijing 100084 China
- Key Laboratory of Molecular Recognition and Function Institute of Chemistry Chinese Academy of Sciences Beijing 100190 China
- University of Chinese Academy of Sciences Beijing 100049 China
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28
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Hörmann FM, Kerzig C, Chung TS, Bauer A, Wenger OS, Bach T. Triplet Energy Transfer from Ruthenium Complexes to Chiral Eniminium Ions: Enantioselective Synthesis of Cyclobutanecarbaldehydes by [2+2] Photocycloaddition. Angew Chem Int Ed Engl 2020; 59:9659-9668. [PMID: 32166853 PMCID: PMC7318320 DOI: 10.1002/anie.202001634] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Revised: 03/12/2020] [Indexed: 12/30/2022]
Abstract
Chiral eniminium salts, prepared from α,β-unsaturated aldehydes and a chiral proline derived secondary amine, underwent, upon irradiation with visible light, a ruthenium-catalyzed (2.5 mol %) intermolecular [2+2] photocycloaddition to olefins, which after hydrolysis led to chiral cyclobutanecarbaldehydes (17 examples, 49-74 % yield), with high diastereo- and enantioselectivities. Ru(bpz)3 (PF6 )2 was utilized as the ruthenium catalyst and laser flash photolysis studies show that the catalyst operates exclusively by triplet-energy transfer (sensitization). A catalytic system was devised with a chiral secondary amine co-catalyst. In the catalytic reactions, Ru(bpy)3 (PF6 )2 was employed, and laser flash photolysis experiments suggest it undergoes both electron and energy transfer. However, experimental evidence supports the hypothesis that energy transfer is the only productive quenching mechanism. Control experiments using Ir(ppy)3 showed no catalysis for the intermolecular [2+2] photocycloaddition of an eniminium ion.
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Affiliation(s)
- Fabian M. Hörmann
- Department Chemie and Catalysis Research Center (CRC)Technische Universität MünchenLichtenbergstraße 485747GarchingGermany
| | - Christoph Kerzig
- Department of ChemistryUniversity of BaselSt. Johanns-Ring 194056BaselSwitzerland
| | - Tim S. Chung
- Department Chemie and Catalysis Research Center (CRC)Technische Universität MünchenLichtenbergstraße 485747GarchingGermany
| | - Andreas Bauer
- Department Chemie and Catalysis Research Center (CRC)Technische Universität MünchenLichtenbergstraße 485747GarchingGermany
| | - Oliver S. Wenger
- Department of ChemistryUniversity of BaselSt. Johanns-Ring 194056BaselSwitzerland
| | - Thorsten Bach
- Department Chemie and Catalysis Research Center (CRC)Technische Universität MünchenLichtenbergstraße 485747GarchingGermany
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29
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Krištofíková D, Modrocká V, Mečiarová M, Šebesta R. Green Asymmetric Organocatalysis. CHEMSUSCHEM 2020; 13:2828-2858. [PMID: 32141177 DOI: 10.1002/cssc.202000137] [Citation(s) in RCA: 70] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Revised: 03/05/2020] [Indexed: 06/10/2023]
Abstract
Asymmetric organocatalysis is becoming one of the main tools for the synthesis of chiral compounds that are needed as medicines, crop protection agents, and other bioactive molecules. It can be effectively combined with various green chemistry methodologies. Intensification techniques, such as ball milling, flow, high pressure, or light, bring not only higher yields, faster reactions, and easier product isolation, but also new reactivities. More sustainable reaction media, such as ionic liquids, deep eutectic solvents, green solvent alternatives, and water, also considerably enhance the sustainability profile of many organocatalytic reactions.
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Affiliation(s)
- Dominika Krištofíková
- Department of Organic Chemistry, Faculty of Natural Sciences, Comenius University in Bratislava, Mlynska dolina, Ilkovicova 6, 842 15, Bratislava, Slovakia
| | - Viktória Modrocká
- Department of Organic Chemistry, Faculty of Natural Sciences, Comenius University in Bratislava, Mlynska dolina, Ilkovicova 6, 842 15, Bratislava, Slovakia
| | - Mária Mečiarová
- Department of Organic Chemistry, Faculty of Natural Sciences, Comenius University in Bratislava, Mlynska dolina, Ilkovicova 6, 842 15, Bratislava, Slovakia
| | - Radovan Šebesta
- Department of Organic Chemistry, Faculty of Natural Sciences, Comenius University in Bratislava, Mlynska dolina, Ilkovicova 6, 842 15, Bratislava, Slovakia
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30
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Urushima A, Taura D, Tanaka M, Horimoto N, Tanabe J, Ousaka N, Mori T, Yashima E. Enantiodifferentiating Photodimerization of a 2,6‐Disubstituted Anthracene Assisted by Supramolecular Double‐Helix Formation with Chiral Amines. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201916103] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Akio Urushima
- Department of Molecular and Macromolecular ChemistryGraduate School of EngineeringNagoya University Chikusa-ku Nagoya 464-8603 Japan
| | - Daisuke Taura
- Department of Molecular and Macromolecular ChemistryGraduate School of EngineeringNagoya University Chikusa-ku Nagoya 464-8603 Japan
- Department of Molecular Design and EngineeringGraduate School of EngineeringNagoya University Chikusa-ku Nagoya 464-8603 Japan
| | - Makoto Tanaka
- Department of Molecular Design and EngineeringGraduate School of EngineeringNagoya University Chikusa-ku Nagoya 464-8603 Japan
| | - Naomichi Horimoto
- Department of Molecular Design and EngineeringGraduate School of EngineeringNagoya University Chikusa-ku Nagoya 464-8603 Japan
| | - Junki Tanabe
- Department of Molecular Design and EngineeringGraduate School of EngineeringNagoya University Chikusa-ku Nagoya 464-8603 Japan
| | - Naoki Ousaka
- Department of Molecular and Macromolecular ChemistryGraduate School of EngineeringNagoya University Chikusa-ku Nagoya 464-8603 Japan
- Department of Molecular Design and EngineeringGraduate School of EngineeringNagoya University Chikusa-ku Nagoya 464-8603 Japan
| | - Tadashi Mori
- Department of Applied ChemistryGraduate School of EngineeringOsaka University 2-1 Yamada-oka Suita Osaka 565-0871 Japan
| | - Eiji Yashima
- Department of Molecular and Macromolecular ChemistryGraduate School of EngineeringNagoya University Chikusa-ku Nagoya 464-8603 Japan
- Department of Molecular Design and EngineeringGraduate School of EngineeringNagoya University Chikusa-ku Nagoya 464-8603 Japan
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31
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Urushima A, Taura D, Tanaka M, Horimoto N, Tanabe J, Ousaka N, Mori T, Yashima E. Enantiodifferentiating Photodimerization of a 2,6‐Disubstituted Anthracene Assisted by Supramolecular Double‐Helix Formation with Chiral Amines. Angew Chem Int Ed Engl 2020; 59:7478-7486. [DOI: 10.1002/anie.201916103] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Revised: 03/16/2020] [Indexed: 01/12/2023]
Affiliation(s)
- Akio Urushima
- Department of Molecular and Macromolecular ChemistryGraduate School of EngineeringNagoya University Chikusa-ku Nagoya 464-8603 Japan
| | - Daisuke Taura
- Department of Molecular and Macromolecular ChemistryGraduate School of EngineeringNagoya University Chikusa-ku Nagoya 464-8603 Japan
- Department of Molecular Design and EngineeringGraduate School of EngineeringNagoya University Chikusa-ku Nagoya 464-8603 Japan
| | - Makoto Tanaka
- Department of Molecular Design and EngineeringGraduate School of EngineeringNagoya University Chikusa-ku Nagoya 464-8603 Japan
| | - Naomichi Horimoto
- Department of Molecular Design and EngineeringGraduate School of EngineeringNagoya University Chikusa-ku Nagoya 464-8603 Japan
| | - Junki Tanabe
- Department of Molecular Design and EngineeringGraduate School of EngineeringNagoya University Chikusa-ku Nagoya 464-8603 Japan
| | - Naoki Ousaka
- Department of Molecular and Macromolecular ChemistryGraduate School of EngineeringNagoya University Chikusa-ku Nagoya 464-8603 Japan
- Department of Molecular Design and EngineeringGraduate School of EngineeringNagoya University Chikusa-ku Nagoya 464-8603 Japan
| | - Tadashi Mori
- Department of Applied ChemistryGraduate School of EngineeringOsaka University 2-1 Yamada-oka Suita Osaka 565-0871 Japan
| | - Eiji Yashima
- Department of Molecular and Macromolecular ChemistryGraduate School of EngineeringNagoya University Chikusa-ku Nagoya 464-8603 Japan
- Department of Molecular Design and EngineeringGraduate School of EngineeringNagoya University Chikusa-ku Nagoya 464-8603 Japan
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32
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Xu N, Li B, Wang C, Uchiyama M. Sila‐ and Germacarboxylic Acids: Precursors for the Corresponding Silyl and Germyl Radicals. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202003070] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Ning‐Xin Xu
- Graduate School of Pharmaceutical Sciences The University of Tokyo 7-3-1 Hongo, Bunkyo-ku Tokyo 113-0033 Japan
| | - Bi‐Xiao Li
- Graduate School of Pharmaceutical Sciences The University of Tokyo 7-3-1 Hongo, Bunkyo-ku Tokyo 113-0033 Japan
| | - Chao Wang
- Graduate School of Pharmaceutical Sciences The University of Tokyo 7-3-1 Hongo, Bunkyo-ku Tokyo 113-0033 Japan
- Cluster for Pioneering Research (CPR) Advanced Elements Chemistry Laboratory RIKEN 2-1 Hirosawa Wako Saitama 351-0198 Japan
| | - Masanobu Uchiyama
- Graduate School of Pharmaceutical Sciences The University of Tokyo 7-3-1 Hongo, Bunkyo-ku Tokyo 113-0033 Japan
- Cluster for Pioneering Research (CPR) Advanced Elements Chemistry Laboratory RIKEN 2-1 Hirosawa Wako Saitama 351-0198 Japan
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33
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Xu N, Li B, Wang C, Uchiyama M. Sila‐ and Germacarboxylic Acids: Precursors for the Corresponding Silyl and Germyl Radicals. Angew Chem Int Ed Engl 2020; 59:10639-10644. [DOI: 10.1002/anie.202003070] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Indexed: 11/08/2022]
Affiliation(s)
- Ning‐Xin Xu
- Graduate School of Pharmaceutical Sciences The University of Tokyo 7-3-1 Hongo, Bunkyo-ku Tokyo 113-0033 Japan
| | - Bi‐Xiao Li
- Graduate School of Pharmaceutical Sciences The University of Tokyo 7-3-1 Hongo, Bunkyo-ku Tokyo 113-0033 Japan
| | - Chao Wang
- Graduate School of Pharmaceutical Sciences The University of Tokyo 7-3-1 Hongo, Bunkyo-ku Tokyo 113-0033 Japan
- Cluster for Pioneering Research (CPR) Advanced Elements Chemistry Laboratory RIKEN 2-1 Hirosawa Wako Saitama 351-0198 Japan
| | - Masanobu Uchiyama
- Graduate School of Pharmaceutical Sciences The University of Tokyo 7-3-1 Hongo, Bunkyo-ku Tokyo 113-0033 Japan
- Cluster for Pioneering Research (CPR) Advanced Elements Chemistry Laboratory RIKEN 2-1 Hirosawa Wako Saitama 351-0198 Japan
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34
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Hörmann FM, Kerzig C, Chung TS, Bauer A, Wenger OS, Bach T. Triplet Energy Transfer from Ruthenium Complexes to Chiral Eniminium Ions: Enantioselective Synthesis of Cyclobutanecarbaldehydes by [2+2] Photocycloaddition. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202001634] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Fabian M. Hörmann
- Department Chemie and Catalysis Research Center (CRC)Technische Universität München Lichtenbergstraße 4 85747 Garching Germany
| | - Christoph Kerzig
- Department of ChemistryUniversity of Basel St. Johanns-Ring 19 4056 Basel Switzerland
| | - Tim S. Chung
- Department Chemie and Catalysis Research Center (CRC)Technische Universität München Lichtenbergstraße 4 85747 Garching Germany
| | - Andreas Bauer
- Department Chemie and Catalysis Research Center (CRC)Technische Universität München Lichtenbergstraße 4 85747 Garching Germany
| | - Oliver S. Wenger
- Department of ChemistryUniversity of Basel St. Johanns-Ring 19 4056 Basel Switzerland
| | - Thorsten Bach
- Department Chemie and Catalysis Research Center (CRC)Technische Universität München Lichtenbergstraße 4 85747 Garching Germany
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35
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Guo J, Fan Y, Lu Y, Zheng S, Su C. Visible‐Light Photocatalysis of Asymmetric [2+2] Cycloaddition in Cage‐Confined Nanospace Merging Chirality with Triplet‐State Photosensitization. Angew Chem Int Ed Engl 2020; 59:8661-8669. [DOI: 10.1002/anie.201916722] [Citation(s) in RCA: 55] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2019] [Indexed: 11/12/2022]
Affiliation(s)
- Jing Guo
- MOE Laboratory of Bioinorganic and Synthetic Chemistry Lehn Institute of Functional Materials School of Chemistry Sun Yat-Sen University Guangzhou 510275 China
| | - Yan‐Zhong Fan
- MOE Laboratory of Bioinorganic and Synthetic Chemistry Lehn Institute of Functional Materials School of Chemistry Sun Yat-Sen University Guangzhou 510275 China
| | - Yu‐Lin Lu
- MOE Laboratory of Bioinorganic and Synthetic Chemistry Lehn Institute of Functional Materials School of Chemistry Sun Yat-Sen University Guangzhou 510275 China
| | - Shao‐Ping Zheng
- MOE Laboratory of Bioinorganic and Synthetic Chemistry Lehn Institute of Functional Materials School of Chemistry Sun Yat-Sen University Guangzhou 510275 China
| | - Cheng‐Yong Su
- MOE Laboratory of Bioinorganic and Synthetic Chemistry Lehn Institute of Functional Materials School of Chemistry Sun Yat-Sen University Guangzhou 510275 China
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36
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Guo J, Fan Y, Lu Y, Zheng S, Su C. Visible‐Light Photocatalysis of Asymmetric [2+2] Cycloaddition in Cage‐Confined Nanospace Merging Chirality with Triplet‐State Photosensitization. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201916722] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Jing Guo
- MOE Laboratory of Bioinorganic and Synthetic Chemistry Lehn Institute of Functional Materials School of Chemistry Sun Yat-Sen University Guangzhou 510275 China
| | - Yan‐Zhong Fan
- MOE Laboratory of Bioinorganic and Synthetic Chemistry Lehn Institute of Functional Materials School of Chemistry Sun Yat-Sen University Guangzhou 510275 China
| | - Yu‐Lin Lu
- MOE Laboratory of Bioinorganic and Synthetic Chemistry Lehn Institute of Functional Materials School of Chemistry Sun Yat-Sen University Guangzhou 510275 China
| | - Shao‐Ping Zheng
- MOE Laboratory of Bioinorganic and Synthetic Chemistry Lehn Institute of Functional Materials School of Chemistry Sun Yat-Sen University Guangzhou 510275 China
| | - Cheng‐Yong Su
- MOE Laboratory of Bioinorganic and Synthetic Chemistry Lehn Institute of Functional Materials School of Chemistry Sun Yat-Sen University Guangzhou 510275 China
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37
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Choi I, Müller V, Lole G, Köhler R, Karius V, Viöl W, Jooss C, Ackermann L. Photoinduced Heterogeneous C-H Arylation by a Reusable Hybrid Copper Catalyst. Chemistry 2020; 26:3509-3514. [PMID: 31943400 PMCID: PMC7155010 DOI: 10.1002/chem.202000192] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2020] [Indexed: 01/22/2023]
Abstract
Heterogeneous copper catalysis enabled photoinduced C-H arylations under exceedingly mild conditions at room temperature. The versatile hybrid copper catalyst provided step-economical access to arylated heteroarenes, terpenes and alkaloid natural products with various aryl halides. The hybrid copper catalyst could be reused without significant loss of catalytic efficacy. Detailed studies in terms of TEM, HRTEM and XPS analysis of the hybrid copper catalyst, among others, supported its outstanding stability and reusability.
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Affiliation(s)
- Isaac Choi
- Institut für Organische und Biomolekulare Chemie, Georg-August-Universität, Tammanstrasse 2, 37077, Göttingen, Germany
| | - Valentin Müller
- Institut für Organische und Biomolekulare Chemie, Georg-August-Universität, Tammanstrasse 2, 37077, Göttingen, Germany
| | - Gaurav Lole
- Institut für Materialphysik, Georg-August-Universität, Friedrich-Hund-Platz 1, 37077, Göttingen, Germany
| | - Robert Köhler
- University of Applied Sciences and Arts, Laboratory of Laser and Plasma Technologies, Von-Ossietzky-Strasse 99, 37085, Göttingen, Germany
| | - Volker Karius
- Geowissenschaftliches Zentrum, Georg-August-Universität, Goldschmidtstrasse 3, 37077, Göttingen, Germany
| | - Wolfgang Viöl
- University of Applied Sciences and Arts, Laboratory of Laser and Plasma Technologies, Von-Ossietzky-Strasse 99, 37085, Göttingen, Germany
| | - Christian Jooss
- Institut für Materialphysik, Georg-August-Universität, Friedrich-Hund-Platz 1, 37077, Göttingen, Germany
| | - Lutz Ackermann
- Institut für Organische und Biomolekulare Chemie, Georg-August-Universität, Tammanstrasse 2, 37077, Göttingen, Germany.,Woehler Research Institute for Sustainable Chemistry (WISCh), Georg-August-Universität Göttingen, Tammannstrasse 2, 37077, Göttingen, Germany
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38
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Mavroskoufis A, Rajes K, Golz P, Agrawal A, Ruß V, Götze JP, Hopkinson MN. N-Heterocyclic Carbene Catalyzed Photoenolization/Diels-Alder Reaction of Acid Fluorides. Angew Chem Int Ed Engl 2020; 59:3190-3194. [PMID: 31814280 PMCID: PMC7027522 DOI: 10.1002/anie.201914456] [Citation(s) in RCA: 88] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2019] [Indexed: 11/23/2022]
Abstract
The combination of light activation and N-heterocyclic carbene (NHC) organocatalysis has enabled the use of acid fluorides as substrates in a UVA-light-mediated photochemical transformation previously observed only with aromatic aldehydes and ketones. Stoichiometric studies and TD-DFT calculations support a mechanism involving the photoactivation of an ortho-toluoyl azolium intermediate, which exhibits "ketone-like" photochemical reactivity under UVA irradiation. Using this photo-NHC catalysis approach, a novel photoenolization/Diels-Alder (PEDA) process was developed that leads to diverse isochroman-1-one derivatives.
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Affiliation(s)
- Andreas Mavroskoufis
- Institute of Chemistry and BiochemistryFreie Universität BerlinTakustraße 314195BerlinGermany
| | - Keerthana Rajes
- Institute of Chemistry and BiochemistryFreie Universität BerlinTakustraße 314195BerlinGermany
| | - Paul Golz
- Institute of Chemistry and BiochemistryFreie Universität BerlinTakustraße 314195BerlinGermany
| | - Arush Agrawal
- Institute of Chemistry and BiochemistryFreie Universität BerlinTakustraße 314195BerlinGermany
| | - Vincent Ruß
- Institute of Chemistry and BiochemistryFreie Universität BerlinTakustraße 314195BerlinGermany
| | - Jan P. Götze
- Institute of Chemistry and BiochemistryFreie Universität BerlinTakustraße 314195BerlinGermany
| | - Matthew N. Hopkinson
- Institute of Chemistry and BiochemistryFreie Universität BerlinTakustraße 314195BerlinGermany
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39
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Shi Q, Ye J. Deracemization Enabled by Visible-Light Photocatalysis. Angew Chem Int Ed Engl 2020; 59:4998-5001. [PMID: 32031314 DOI: 10.1002/anie.201914858] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2019] [Indexed: 01/12/2023]
Abstract
Deracemization is an ideal but challenging strategy for the conversion of a racemic mixture into a single enantiomer. Recent studies have demonstrated that visible-light photocatalysis could be utilized to promote selective deracemization of axially chiral allenes as well as cyclopropylquinolones and cyclic ureas with central chirality either through energy transfer or through a sequence of electron, proton, and hydrogen-atom transfer.
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Affiliation(s)
- Qinglong Shi
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, P. R. China
| | - Juntao Ye
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, P. R. China
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40
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Affiliation(s)
- Qinglong Shi
- Shanghai Key Laboratory for Molecular Engineering of Chiral DrugsSchool of Chemistry and Chemical EngineeringShanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 P. R. China
| | - Juntao Ye
- Shanghai Key Laboratory for Molecular Engineering of Chiral DrugsSchool of Chemistry and Chemical EngineeringShanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 P. R. China
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41
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Mavroskoufis A, Rajes K, Golz P, Agrawal A, Ruß V, Götze JP, Hopkinson MN. Durch N‐heterocyclische Carbene katalysierte Photoenolisierungs‐Diels‐Alder‐Reaktion von Säurefluoriden. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201914456] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Andreas Mavroskoufis
- Institut für Chemie und Biochemie Freie Universität Berlin Takustraße 3 14195 Berlin Deutschland
| | - Keerthana Rajes
- Institut für Chemie und Biochemie Freie Universität Berlin Takustraße 3 14195 Berlin Deutschland
| | - Paul Golz
- Institut für Chemie und Biochemie Freie Universität Berlin Takustraße 3 14195 Berlin Deutschland
| | - Arush Agrawal
- Institut für Chemie und Biochemie Freie Universität Berlin Takustraße 3 14195 Berlin Deutschland
| | - Vincent Ruß
- Institut für Chemie und Biochemie Freie Universität Berlin Takustraße 3 14195 Berlin Deutschland
| | - Jan P. Götze
- Institut für Chemie und Biochemie Freie Universität Berlin Takustraße 3 14195 Berlin Deutschland
| | - Matthew N. Hopkinson
- Institut für Chemie und Biochemie Freie Universität Berlin Takustraße 3 14195 Berlin Deutschland
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42
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Faßbender SI, Molloy JJ, Mück‐Lichtenfeld C, Gilmour R. Geometric E→Z Isomerisation of Alkenyl Silanes by Selective Energy Transfer Catalysis: Stereodivergent Synthesis of Triarylethylenes via a Formal anti-Metallometallation. Angew Chem Int Ed Engl 2019; 58:18619-18626. [PMID: 31541612 PMCID: PMC6916377 DOI: 10.1002/anie.201910169] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2019] [Indexed: 12/30/2022]
Abstract
An efficient geometrical E→Z isomerisation of alkenyl silanes is disclosed via selective energy transfer using an inexpensive organic sensitiser. Characterised by operational simplicity, short reaction times (2 h), and broad substrate tolerance, the reaction displays high selectivity for trisubstituted systems (Z/E up to 95:5). In contrast to thermal activation, directionality results from deconjugation of the π-system in the Z-isomer due to A1,3 -strain thereby inhibiting re-activation. The structural importance of the β-substituent logically prompted an investigation of mixed bis-nucleophiles (Si, Sn, B). These versatile linchpins also undergo facile isomerisation, thereby enabling a formal anti-metallometallation. Mechanistic interrogation, supported by a theoretical investigation, is disclosed together with application of the products to the stereospecific synthesis of biologically relevant target structures.
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Affiliation(s)
- Svenja I. Faßbender
- Organisch Chemisches InstitutWestfälische Wilhelms-Universität MünsterCorrensstraße 4048149MünsterGermany
| | - John J. Molloy
- Organisch Chemisches InstitutWestfälische Wilhelms-Universität MünsterCorrensstraße 4048149MünsterGermany
| | - Christian Mück‐Lichtenfeld
- Organisch Chemisches InstitutWestfälische Wilhelms-Universität MünsterCorrensstraße 4048149MünsterGermany
| | - Ryan Gilmour
- Organisch Chemisches InstitutWestfälische Wilhelms-Universität MünsterCorrensstraße 4048149MünsterGermany
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43
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Rosso C, Filippini G, Prato M. Use of Nitrogen-Doped Carbon Nanodots for the Photocatalytic Fluoroalkylation of Organic Compounds. Chemistry 2019; 25:16032-16036. [PMID: 31529711 DOI: 10.1002/chem.201903433] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2019] [Revised: 09/16/2019] [Indexed: 01/24/2023]
Abstract
The use of amine-rich N-doped carbon nanodots (NCNDs) for the photochemical radical perfluoroalkylation of organic compounds is reported. This operationally simple approach occurs under mild conditions producing valuable new C-C bonds. The chemistry is driven by the ability of NCNDs to directly reach an electronically excited state upon light absorption, thereby successively triggering the formation of reactive radical species from simple perfluoroalkyl iodides. Preliminary mechanistic studies are also reported.
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Affiliation(s)
- Cristian Rosso
- CENMAT, Center of Excellence for Nanostructured Materials, Department of Chemical and Pharmaceutical Sciences, INSTM UdR, University of Trieste, Via Licio Giorgieri 1, Trieste, 34127, Italy
| | - Giacomo Filippini
- CENMAT, Center of Excellence for Nanostructured Materials, Department of Chemical and Pharmaceutical Sciences, INSTM UdR, University of Trieste, Via Licio Giorgieri 1, Trieste, 34127, Italy
| | - Maurizio Prato
- CENMAT, Center of Excellence for Nanostructured Materials, Department of Chemical and Pharmaceutical Sciences, INSTM UdR, University of Trieste, Via Licio Giorgieri 1, Trieste, 34127, Italy.,Carbon Nanobiotechnology Laboratory, CIC BiomaGUNE, Paseo de Miramón 182, 20009, Donostia-San Sebastian, Spain.,Basque Fdn Sci, Ikerbasque, Bilbao, 48013, Spain
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44
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Affiliation(s)
- Thomas H. Rehm
- Division Energy & Chemical Technology / Flow Chemistry GroupFraunhofer Institute for Microengineering and Microsystems IMM Carl-Zeiss-Straße 18–20 55129 Mainz Germany
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45
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Affiliation(s)
- Tehshik P. Yoon
- Department of ChemistryUniversity of Wisconsin–Madison 1101 University Avenue Madison WI 53706 USA
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46
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Steinlandt PS, Zuo W, Harms K, Meggers E. Bis-Cyclometalated Indazole Chiral-at-Rhodium Catalyst for Asymmetric Photoredox Cyanoalkylations. Chemistry 2019; 25:15333-15340. [PMID: 31541505 PMCID: PMC6916287 DOI: 10.1002/chem.201903369] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2019] [Revised: 09/02/2019] [Indexed: 01/23/2023]
Abstract
A new class of bis‐cyclometalated rhodium(III) catalysts containing two inert cyclometalated 6‐tert‐butyl‐2‐phenyl‐2H‐indazole ligands and two labile acetonitriles is introduced. Single enantiomers (>99 % ee) were obtained through a chiral‐auxiliary‐mediated approach using a monofluorinated salicyloxazoline. The new chiral‐at‐metal complex is capable of catalyzing the visible‐light‐induced enantioselective α‐cyanoalkylation of 2‐acyl imidazoles in which it serves a dual function as the chiral Lewis acid catalyst for the asymmetric radical chemistry and at the same time as the photoredox catalyst for the visible‐light‐induced redox chemistry (up to 80 % yield, 4:1 d.r., and 95 % ee, 12 examples).
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Affiliation(s)
- Philipp S Steinlandt
- Fachbereich Chemie, Philipps-Universität Marburg, Hans-Meerwein-Strasse 4, 35043, Marburg, Germany
| | - Wei Zuo
- Fachbereich Chemie, Philipps-Universität Marburg, Hans-Meerwein-Strasse 4, 35043, Marburg, Germany
| | - Klaus Harms
- Fachbereich Chemie, Philipps-Universität Marburg, Hans-Meerwein-Strasse 4, 35043, Marburg, Germany
| | - Eric Meggers
- Fachbereich Chemie, Philipps-Universität Marburg, Hans-Meerwein-Strasse 4, 35043, Marburg, Germany
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47
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Ahuja S, Jockusch S, Ugrinov A, Sivaguru J. Energy Transfer Catalysis by Visible Light: Atrop‐ and Regio‐Selective Intermolecular [2+2]‐Photocycloaddition of Maleimide with Alkenes. European J Org Chem 2019. [DOI: 10.1002/ejoc.201901157] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Sapna Ahuja
- Centre of Photochemical Sciences and Department of Chemistry Bowling Green State University 43403 Bowling Green OH United States
| | - Steffen Jockusch
- Department of Chemistry Columbia University 10027 New York NY United States
| | - Angel Ugrinov
- Department of Chemistry and Biochemistry North Dakota State University 58102 Fargo ND United States
| | - Jayaraman Sivaguru
- Centre of Photochemical Sciences and Department of Chemistry Bowling Green State University 43403 Bowling Green OH United States
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48
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Faßbender SI, Molloy JJ, Mück‐Lichtenfeld C, Gilmour R. Geometric
E
→
Z
Isomerisation of Alkenyl Silanes by Selective Energy Transfer Catalysis: Stereodivergent Synthesis of Triarylethylenes via a Formal
anti
‐Metallometallation. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201910169] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Svenja I. Faßbender
- Organisch Chemisches InstitutWestfälische Wilhelms-Universität Münster Corrensstraße 40 48149 Münster Germany
| | - John J. Molloy
- Organisch Chemisches InstitutWestfälische Wilhelms-Universität Münster Corrensstraße 40 48149 Münster Germany
| | - Christian Mück‐Lichtenfeld
- Organisch Chemisches InstitutWestfälische Wilhelms-Universität Münster Corrensstraße 40 48149 Münster Germany
| | - Ryan Gilmour
- Organisch Chemisches InstitutWestfälische Wilhelms-Universität Münster Corrensstraße 40 48149 Münster Germany
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49
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Tang X, Zhao J, Wu Y, Feng S, Yang F, Yu Z, Meng Q. Visible‐Light‐Driven Enantioselective Aerobic Oxidation of β‐Dicarbonyl Compounds Catalyzed by Cinchona‐Derived Phase Transfer Catalysts in Batch and Semi‐Flow. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201900777] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Xiao‐Fei Tang
- State Key Laboratory of Fine Chemicals, School of Chemical EngineeringDalian University of Technology Dalian 116024 People's Republic of China
| | - Jing‐Nan Zhao
- State Key Laboratory of Fine Chemicals, School of Chemical EngineeringDalian University of Technology Dalian 116024 People's Republic of China
| | - Yu‐Feng Wu
- State Key Laboratory of Fine Chemicals, School of Chemical EngineeringDalian University of Technology Dalian 116024 People's Republic of China
| | - Shi‐Hao Feng
- State Key Laboratory of Fine Chemicals, School of Chemical EngineeringDalian University of Technology Dalian 116024 People's Republic of China
| | - Fan Yang
- State Key Laboratory of Fine Chemicals, School of Chemical EngineeringDalian University of Technology Dalian 116024 People's Republic of China
| | - Zong‐Yi Yu
- State Key Laboratory of Fine Chemicals, School of Chemical EngineeringDalian University of Technology Dalian 116024 People's Republic of China
| | - Qing‐Wei Meng
- State Key Laboratory of Fine Chemicals, School of Chemical EngineeringDalian University of Technology Dalian 116024 People's Republic of China
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50
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Fischer J, Mele L, Serier-Brault H, Nun P, Coeffard V. Controlling Photooxygenation with a Bifunctional Quinine-BODIPY Catalyst: towards Asymmetric Hydroxylation of β-Dicarbonyl Compounds. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900984] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Jérôme Fischer
- Université de Nantes; CEISAM UMR CNRS 6230; 44000 Nantes France
| | - Lucas Mele
- Université de Nantes; CEISAM UMR CNRS 6230; 44000 Nantes France
| | - Hélène Serier-Brault
- Institut des Matériaux Jean Rouxel; Université de Nantes; CNRS; 2 rue de la Houssinière, BP 32229 44322 Nantes France
| | - Pierrick Nun
- Université de Nantes; CEISAM UMR CNRS 6230; 44000 Nantes France
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